DIURNAL LEPIDOPTERA COLLECTED IN ALASKA. 



Family PAPILIONID^. 

 Subfamily rAPILIOX.E. 



Geuus PAPILIO Liuna;as. 



Tapilio Machaox Liuu.. var. Aliaska Scuclder. 

 This form s.ems to be abundaut at Saint Blichaels, aud was found high up the Yukou 

 Riveflv Dan The most easterly point at which it has been observed is Eupert House, Hudson's 

 Bay ^I wouW appear to fly over the boreal regions west of Hudson's Bay, but i was not taken 

 by Mrs Ross atFortSimpJon some years ago, though a very large collection of butterfl.es was 

 made there Captain Geddes did not find it along the line of the Canadian 1 ac.hc Ea.lroad nor 

 inthe Pelce Kive district in 1883, nor did the late Mr. Crotch take it in British Columbia though 

 l^e collected as Ir to the north as Bald Mountain. It is the same form, apparently which fl.es m 

 ?he H mXas and other parts of Eastern Asia, confounded with AsiaUcus M6u6tr.es, which ,8 the 

 name of 4 aberration only. There is some variation in color among the examples from Saint 

 Saell Zt? be ng pale yellow. But one male is deep yellow, and so is like the Hudson's Bay 



examples so far observed. 



Subfamily PIERIN^. 



Geuus PIERIS Sclirauk. 



PiERis :N^api Linn. Winter form Bnjonice Ochsenheimer. 



A number of examples were taken at Saint Michaels, 1878, at dates from June 2 to July 



7 TheTrre all of small size, the males expanding 1.5 inch, the females l.G inch. The male is 



^hite; on the under side the hind wings are either white or faint yellow, the nervures heavily 



Tdci d with gray-brown, just as in examples from Lapland. The females are much obscured on 



upper lide by gray, and the nervures are broadly edged with gray. Two Lapland females are 



Xw, obsciie^ by brown ; so also are some examples from the Alps, but 1 have not ^ound A askan 



•emales of this hue. The winter form of Napi flies over the entire boreal part of the continent. It 



s 3e b ooded, and to the south, on the Pacitic slope, is replaced by the winter form venosa 



Scudder, its sunm.er form there being palUcJa Scudder. Mr. Mead took many examples of both 



sexes o^Bryonice on ^Newfoundland. The species there is two-brooded and the but erfl.es o the 



second brood in markings lie between venosa and pallida of the west. I called this ^ewi^aund and 



suamer form Acadica, Papilio 1, p. 87, 1881. The butterflies of the winter form on this .sland 



are nearly twice as large in superficial area as the Saint Michaels examples. 



